Treatment of olive mill wastewaters by nanofiltration and reverse osmosis membranes

Coskun, Tamer H.; Debik, Eyüp; Demır, Neslihan Manav

doi:10.1016/j.desal.2010.04.034

Cited by 128 publications

(49 citation statements)

References 26 publications

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“…Olive mill wastewater (OMW) is generated by the olive oil mills during the extraction of olive oil (Ben Sassi et al, 2008;Eroglu et al, 2008;Jarboui et al, 2008;Hanafi et al, 2009;Hanifi and El Hadrami, 2009;Ipsilantis et al, 2009;Kallel et al, 2009; resist biological degradation (Coskun et al, 2010). Typically, due to the current absence of appropriate treating technologies for OMW effluents, OMW is discharged directly into sewer systems, valleys, and uncontrolled ponds, despite the fact that such discarding methods are forbidden in many Mediterranean countries (Shaheen and Karim, 2007;Brunetti et al, 2007;Boukhoubza et al, 2008;Dhaouadi and Marrot, 2008;Jarboui et al, 2008;Hanifi and El Hadrami, 2009).…”

Section: Introductionmentioning

confidence: 99%

Treatment of olive mill based wastewater by means of magnetic nanoparticles: Decolourization, dephenolization and COD removal

Nassar

Arar

Marei

et al. 2014

Environmental Nanotechnology, Monitoring & Management

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Please cite this article in press as: Nassar, N.N., et al., Treatment of olive mill based wastewater by means of magnetic nanoparticles: Decolourization, dephenolization and COD removal. Environ. Nanotechnol. Monit. Manag. (2014), http://dx. a b s t r a c tOlive mill wastewater (OMW) is an environmental concern that has been highlighted as a serious environmental problem in the Mediterranean basin countries because of its high organic load and phytotoxic and antibacterial phenolic compounds, which resist biological degradation. Consequently, this type of wastewater represents a huge challenge for the conventional wastewater treatment techniques as it can impact the lifetime of bacteria needed for the treatment. Iron-oxide nanoparticles are attractive for wastewater treatment for two important reasons. First, nanoparticles can remove pollutants from wastewater rapidly. Second, this magnetic type of nanoparticles could be separated easily using a magnet after finishing treatment process. In this study, we aimed at investigating the effectiveness of the magnetic iron oxide nanoparticles in the removal of large organic contaminants from OMW. Batch and continuous mode processes were applied on OMW treatment to determine the effect of contact time, solution pH, coexisting contaminants and the adsorption isotherm.The results showed that the adsorption was fast and the adsorption reached equilibrium within less than 30 min. The adsorption equilibrium data fit very well to the Brunauer-Emmett-Teller (BET) Model, indicating multi-layers adsorption. The adsorption of major pollutants was associated to an efficient removal of coexisting contaminants such as heavy metals and free ions. The adsorption of OMW pollutants was dependent on pH of the solution. Finally, continuous-mode process was tested successfully using a packed bed column that combined sand filtration with magnetic nanoparticles to decolourize OMW effluent. This study will provide valuable insight on the effect of nanoparticles toward the treatment and recyclability of olive mill wastewater, which is crucial for the local olive mill industry. After seeing the successful achievement of integrating nanoparticles with fixed bed filtration, a preliminary process description and cost estimation of stand-alone plant (with a capacity of 4 m 3 /h) for OMW treatment were considered in this study. Process capital and annual operating costs were estimated to be $12,306 and $476/year, respectively.

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Section: Introductionmentioning

confidence: 99%

Treatment of olive mill based wastewater by means of magnetic nanoparticles: Decolourization, dephenolization and COD removal

Nassar

Arar

Marei

et al. 2014

Environmental Nanotechnology, Monitoring & Management

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“…Also, Coskun et al [26] examined UF as part of an integral membrane process for OMW-3 reclamation, but did not consider the entity of fouling in the performance of the membranes. Zirehpour et al [27] examined a lab-made UF membrane for the puriication of OMW-3, preceded by a MF membrane (50, 5, and 0.2 μm).…”

Section: Microiltration and Ultrailtration Membranesmentioning

confidence: 99%

On the Purification of Agro-Industrial Wastewater by Membrane Technologies: The Case of Olive Mill Effluents

Ochando-Pulido¹,

Martínez-Férez²

2017

Desalination

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“…The FO and RO processes have been used to treat a variety of wastewaters such as municipal wastewater [14,16,18,20], oily wastewater [21,22], produced water [23], tannery wastewater [24], dairy wastewater [25], olive mill wastewater [26], as well as synthetic wastewater [8,27].…”

Section: Applications Of Ro and Fo Membranes In Wastewater Treatmentmentioning

confidence: 99%

Applications of Reverse and Forward Osmosis Processes in Wastewater Treatment: Evaluation of Membrane Fouling

Mecha¹

2018

Osmotically Driven Membrane Processes - Approach, Development and Current Status

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Although reverse osmosis (RO) process is widely used for wastewater reclamation, it requires high amount of energy that has a major effect on the economic effectiveness of the process. Furthermore, RO membranes are susceptible to fouling, which further limits their effectiveness and increases the costs due to the need for frequent cleaning.Consequently, the use of osmotically driven membrane separation processes such as forward osmosis (FO) has gained increasing consideration, although its uptake in wastewater remediation is still low. This is because the FO process, unlike the RO process, is operated by the osmotic gradient between the feed and draw solutions; therefore, it requires minimal or no hydraulic pressure. Hence, it has unique advantages, such as possibility of low fouling, and high water recovery. Nonetheless, the long-standing problem of membrane fouling still remains a major challenge even in the performance of FO processes especially when treating raw wastewaters, which have various contaminants. Furthermore, the mechanism of fouling in FO process has been found to be different from an RO process, and there is need for further studies to elucidate the differences of FO and RO fouling. These aspects are evaluated in this review.

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Treatment of olive mill wastewaters by nanofiltration and reverse osmosis membranes

Cited by 128 publications

References 26 publications

Treatment of olive mill based wastewater by means of magnetic nanoparticles: Decolourization, dephenolization and COD removal

Treatment of olive mill based wastewater by means of magnetic nanoparticles: Decolourization, dephenolization and COD removal

On the Purification of Agro-Industrial Wastewater by Membrane Technologies: The Case of Olive Mill Effluents

Applications of Reverse and Forward Osmosis Processes in Wastewater Treatment: Evaluation of Membrane Fouling

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